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2025-12-07 - 01:31
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 20 highest latencies:
System rack6slot0.osadl.org (updated Sat Dec 06, 2025 13:01:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1257999303297,2cyclictest0-21swapper/911:58:5639
1257999303297,2cyclictest0-21swapper/911:58:5639
1257999303297,2cyclictest0-21swapper/911:58:5639
1257999286233,33cyclictest0-21swapper/911:25:3439
1257999286233,33cyclictest0-21swapper/911:25:3439
1257999286233,33cyclictest0-21swapper/911:25:3439
1260199241237,2cyclictest0-21swapper/2609:46:3919
1260199241237,2cyclictest0-21swapper/2609:46:3919
1260199241237,2cyclictest0-21swapper/2609:46:3919
1257999231200,15cyclictest0-21swapper/911:50:1939
1257999231200,15cyclictest0-21swapper/911:50:1939
1257999231200,15cyclictest0-21swapper/911:50:1839
1257999222186,14cyclictest0-21swapper/907:30:2039
12591992211,110cyclictest0-21swapper/1910:35:1911
12591992211,110cyclictest0-21swapper/1910:35:1911
12591992211,110cyclictest0-21swapper/1910:35:1911
1257999221196,12cyclictest15981-21CPU39
1257999221196,12cyclictest15981-21CPU39
1260199220173,29cyclictest0-21swapper/2610:55:2219
1260199220173,29cyclictest0-21swapper/2610:55:2219
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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